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56418713491 = 7291571770221
BaseRepresentation
bin110100100010110100…
…010011111110010011
312101121220202121020011
4310202310103332103
51411021142312431
641530212455351
74035052103110
oct644264237623
9171556677204
1056418713491
1121a21990548
12ab2661a557
1354217cca4a
142a32db5907
15170313acb1
hexd22d13f93

56418713491 has 16 divisors (see below), whose sum is σ = 67126818240. Its totient is φ = 46393925760.

The previous prime is 56418713471. The next prime is 56418713509. The reversal of 56418713491 is 19431781465.

It is not a de Polignac number, because 56418713491 - 25 = 56418713459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56418713471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 853240 + ... + 916981.

It is an arithmetic number, because the mean of its divisors is an integer number (4195426140).

Almost surely, 256418713491 is an apocalyptic number.

56418713491 is a deficient number, since it is larger than the sum of its proper divisors (10708104749).

56418713491 is a wasteful number, since it uses less digits than its factorization.

56418713491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1770414.

The product of its digits is 725760, while the sum is 49.

The spelling of 56418713491 in words is "fifty-six billion, four hundred eighteen million, seven hundred thirteen thousand, four hundred ninety-one".

Divisors: 1 7 29 157 203 1099 4553 31871 1770221 12391547 51336409 277924697 359354863 1945472879 8059816213 56418713491